pngsave: ensure 8-bit palette images can be created #3031
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jcupitt
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Sep 8, 2022
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I added a note to the changelog and merged to master as well. |
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This PR ensures the logic matches the comment and, I think, intended behaviour. (It also fixes comment indentation.)
It targets the 8.13 branch as this appears to be a bug introduced in v8.13.1 via commit 1989203
Reported downstream at lovell/sharp#3357